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Big Question: Is Earth Past the Tipping Point?

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For 10,000 years, our world seemed endless. The sky was the limit. But today's world looks much smaller. We've cleared, consumed and polluted our way across the globe. The planet is shrinking. Have we pushed Earth past the tipping point? That's a critical issue we explore in our second Big Question video, which draws on research from "Planetary Boundaries: A Safe Operating Space for Humanity," published this past fall in the journal Nature.



This video coincides with "Boundaries for a Healthy Planet," IonE Director Jonathan Foley's cover story in Scientific American magazine's April 2010 issue.


  The opinions expressed in this blog are those of the author(s) and not necessarily
  of the Institute on the Environment/University of Minnesota.

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